Search Result of "parasitoid"

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งานวิจัย

การประเมินทางด้านชีววิทยาของแตนเบียนแตนสร้างปม Quadrastichus sp. (Hymenoptera:Eulophidae) ของประเทศไทย (2013)

หัวหน้าโครงการ:Imgดร.เบญจคุณ แสงทองพราว, ผู้ช่วยศาสตราจารย์

แหล่งทุน:คณะกรรมการโครงการวิจัยและพัฒนาสวนป่าไม้เศรษฐกิจ

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งานวิจัย

ชนิดและการแพร่กระจายของแมลงวันเบียนในปลวก สกุล Macrotermes (Termitidae: Macrotermitinae) (2018)

หัวหน้าโครงการ:Imgดร.สุนิศา สงวนทรัพย์, ผู้ช่วยศาสตราจารย์

ผู้ร่วมโครงการ:Imgนายร้อยโท นกน้อย

แหล่งทุน:บัณฑิตวิทยาลัย มหาวิทยาลัยเกษตรศาสตร์

ผลลัพธ์:วารสาร (1)

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Evaluation of Parasitism Capacity of Megastigmus thitipornae Dog?nlar & Hassan (Hymenoptera: Torymidae), the Local Parasitoid of Eucalyptus Gall Wasp, Leptocybe invasa Fishe

ผู้เขียน:Imgดร.เบญจคุณ แสงทองพราว, ผู้ช่วยศาสตราจารย์, Imgนายโกศล เจริญสม, รองศาสตราจารย์

สื่อสิ่งพิมพ์:pdf

Abstract

Megastigmus thitipornae Dog?nlar & Hassan is the local parasitoid of Leptocybe invasa Fisher & La Salle, which is a devastating pest of Eucalyptus camaldulensis Dehn. in Thailand. This research aimed to evaluate the parasitism capacity of M. thitipornae. The experiments were undertaken in the laboratory and the greenhouse. The results from feeding adult M. thitipornae with six different diets (nine replications per treatment and ten parasitoids per replication) in the laboratory showed that diets had highly significant effects on the means of longevity of female and male parasitoids (P < 0.01, P < 0.01, respectively). A honey solution diet could extend the mean longevity of females to 9.83 ? 0.60 d (mean ? SE) and that of males to 7.83 ? 0.48 d. Estimated 50% female and male survival periods, when fed with the honey solution diet, were 8 and 4 d, respectively. The average potential fecundity (egg load) of females was 2.98 ? 0.11 eggs per female. The average female size (hind tibia length) was 0.31 ? 0.002 mm. In the greenhouse, the mean realized fecundity of females was 13.20 ? 1.95 progeny per female. M. thitipornae was identified as a synovigenic species. The progeny of this parasitoid had a male-biased sex ratio. M. thitipornae parasitized on the mature larva and pupa of the host. The single egg of this parasitoid developed as a solitary ectoparasitoid and completed its development outside the host body. The mean developmental time of M. thitipornae from the egg to the adult stage was 17 ? 0.44 d. When the above biological parameters of M. thitipornae were evaluated with those of L. invasa from a previous study, the results indicated that M. thitipornae had less parasitism capacity to control eucalyptus gall wasp (L. invasa) in Thailand.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 047, Issue 2, Mar 13 - Apr 13, Page 191 - 204 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Suitability of Different Mealybug Species (Hemiptera: Pseudococcidae) as Hosts for the Newly Identified Parasitoid Allotropa suasaardi Sarkar & Polaszek (Hymenoptera: Platyg

ผู้เขียน:ImgM. A. Sarkar, Imgดร.วิวัฒน์ เสือสะอาด, รองศาสตราจารย์, Imgดร.โสภณ อุไรชื่น, รองศาสตราจารย์

สื่อสิ่งพิมพ์:pdf

Abstract

The parasitoid Allotropa suasaardi Sarkar & Polaszek (Hymenoptera: Platygasteridae) was recently described from a series of specimens reared from Phenacoccus manihoti Matile-Ferrero on cassava (Manihot esculenta Crantz) in a field in Kanchanaburi province, Thailand. It is currently being evaluated as a biological control agent of the cassava mealybug complex. In order to understand host/parasitoid ecological interactions and optimize the mass-production system of this parasitoid, nine mealybug species (P. manihoti, Pseudococcus jackbeardsleyi Gimpel & Miller, Ferrissia virgata (Cockerell), Phenacoccus madeirensis Green, Planococcus citri (Risso), Dysmicoccus neobrevipes Beardsley, Coccidohystrix insolita (Green), Rastrococcus spinosus (Robinson) and Paracoccus marginatus Williams & Granara de Willink) widespread in Thailand, were tested to determine their potential as alternative hosts for the parasitoid. A set of tests was conducted in the laboratory on susceptibility, preference and suitability. Successful parasitization and the development of progeny were obtained with four mealybug species, D. neobrevipes, P. manihoti, P. madeirensis and P. jackbeardsleyi; the other mealybug species were not utilized by the parasitoid. A. suasaardi accepted multiple species for development, with the ranking of species preference, from the most to the least being D. neobrevipes, P. manihoti, P. madeirensis and P. jackbeardsleyi. The mean developmental time was shorter and a higher number of progeny were produced in D. neobrevipes mealybug species followed by P. manihoti. The results presented in this study show some of the range of hosts available for A. suasaardi Sarkar & Polaszek in Thailand.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 048, Issue 1, Jan 14 - Feb 14, Page 17 - 27 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Population Trends of Sugarcane Moth Borers and Their Larval Parasitoid, Cotesia flavipes Cameron (Hymenoptera: Braconidae) in Growing Sugarcane Plantations)

ผู้เขียน:Imgเทวี มณีรัตน์, Imgดร.วิวัฒน์ เสือสะอาด, รองศาสตราจารย์

สื่อสิ่งพิมพ์:pdf

Abstract

Sugarcane moth borers, Chilo infuscatellus Snellen, Chilo sacchariphagus (Bojer), Chilo tumidicostalis (Hampson), Scirpophaga excerptalis (Walker), and Sesamia inferens (Walker) are important and destructive insect pests attacking sugarcane crops in the sugarcane planting areas in central Thailand. In sugarcane fields, they are controlled by the endoparasitic wasp, Cotesia flavipes Cameron (Hymenoptera: Braconidae) which is an effective larval parasitoid of the sugarcane moth borers. In the present investigation, population trends of the sugarcane moth borers and C. flavipes were analyzed in four districts of Thailand in three successive years (2009–2011 sugarcane planting seasons). Sugarcane moth borers occurred throughout the studied planting locations. The population trends of the insect pests and their parasitoid, C. flavipes, were synchronized early in each planting season when the sugarcane was in the sprout emergence stage, and throughout the end of each season. The sugarcane plants gave rise to fluctuations reminiscent of the parasitism of the parasitoid C. flavipes, indicating the phenology of the plant and insect host generating mechanisms, respectively.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 049, Issue 3, May 15 - Jun 15, Page 403 - 412 |  PDF |  Page 

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